Wu, Xiner; de Vernal, Anne; Allan, Estelle (2025): Mixed layer depth reconstructions based on dinocyst assemblage data of sediment core PS1842 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982641, In: Wu, X et al. (2025): Mixed layer depth reconstructions based on dinocyst assemblage data for 16 Holocene records in the subpolar North Atlantic using the modern analogue technique and weighted averaging partial least squares [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.982394
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Published: 2025-06-16 • DOI registered: 2025-06-17
Abstract:
Winter mixed layer depth (MLD) was reconstructed from the dinocyst assemblage data of sediment core PS1842 using two different approaches: modern analogue technique (MAT) and weighted averaging partial least square (WAPLS) regression and calibration. The n = 1968 modern dinocyst database and the modern MLD climatology of 1981-2010 from the World Ocean Atlas 2018 were used as calibration dataset.
Keyword(s):
Related to:
Van Nieuwenhove, Nicolas; Baumann, Astrid; Matthiessen, Jens; Bonnet, Sophie; de Vernal, Anne (2016): Sea surface conditions in the southern Nordic Seas during the Holocene based on dinoflagellate cyst assemblages. The Holocene, 26(5), 722-735, https://doi.org/10.1177/0959683615618258
Wu, Xiner (2025): Mixed layer depth values for the n = 1968 modern dinocyst database [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.982265
Wu, Xiner; de Vernal, Anne; Allan, Estelle (2025): Migration of deep convection center in subpolar North Atlantic around 6 ka suggested by a dinocyst proxy of mixed layer depth. Paleoceanography and Paleoclimatology, 40(6), e2024PA004998, https://doi.org/10.1029/2024PA004998
Funding:
Fonds de Recherche du Québec – Nature et Technologies (FRQNT), grant/award no. 320994: FRQNT - Nature et technologies
Natural Sciences and Engineering Research Council (NSERC), grant/award no. DG/AdV: NSERC Discovery Grant
Coverage:
Latitude: 69.467200 * Longitude: -16.530500
Date/Time Start: 1990-06-15T10:12:00 * Date/Time End: 1990-06-15T10:12:00
Minimum Elevation: -982.0 m * Maximum Elevation: -982.0 m
Event(s):
PS1842-5 (GIK21842-5 PS17/007; PS42) * Latitude: 69.467200 * Longitude: -16.530500 * Date/Time: 1990-06-15T10:12:00 * Elevation: -982.0 m * Penetration: 0.43 m * Recovery: 0.43 m * Location: Kolbeinsey Ridge * Campaign: ARK-VII/1 (PS17) * Basis: Polarstern * Method/Device: Giant box corer (GKG)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | AGE | Age | ka BP | Allan, Estelle | Geocode | |
| 2 | Mixed layer depth | MLD | m | Wu, Xiner | Modern analogue technique (MAT) | MAT |
| 3 | Mixed layer depth | MLD | m | Wu, Xiner | Weighted averaging partial least squares (WA-PLS) regression | WAPLS regression and calibration |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
30 data points
Data
| 1 Age [ka BP] | 2 MLD [m] (MAT, Modern analogue techniqu...) | 3 MLD [m] (WAPLS regression and calibrat...) |
|---|---|---|
| 0.00000 | 396.311 | 265.045 |
| 0.59400 | 342.258 | 285.371 |
| 1.42800 | 323.482 | 256.555 |
| 2.26200 | 386.512 | 243.074 |
| 3.35633 | 352.317 | 297.292 |
| 4.71100 | 342.155 | 221.115 |
| 6.06567 | 361.734 | 215.984 |
| 7.08214 | 342.954 | 177.524 |
| 7.76043 | 307.059 | 206.030 |
| 8.43871 | 328.783 | 244.011 |
| 9.11700 | 342.064 | 284.112 |
| 9.79529 | 245.972 | 268.988 |
| 10.47360 | 222.615 | 222.099 |
| 11.15190 | 134.253 | 445.799 |
| 11.83010 | 135.103 | 487.742 |